轮式工程机械自动防滑差速系统关键技术设计  

Design of Key Technique in Automatic Anti-slip Differential System of Wheel Type Construction Machinery

作　　者：程安宁[1] 黄培[1] 贾爱芹[1] 

机构地区：[1]西安科技大学

出　　处：《工程机械》2008年第2期27-31,共5页Construction Machinery and Equipment

基　　金：陕西省西安市科学技术局资助项目(GG06025)

摘　　要：工程机械是资源开发、市政工程、交通建设、水利电力等工程施工的重要机械设备。传统的轮式工程机械的差速器,自锁系数变化范围小,防滑功能有限,影响车辆操纵的稳定性;同时差速器特性在驱动过程中不能适应外界条件的变化,难以实现自动控制,降低了工作效率。针对传统工程机械差速系统存在防滑功能不强的缺陷,研究了一种新型的以ATMEL89C2051单片机为控制核心,以最佳滑移率为控制目标,用模糊PID方法控制的自动防滑差速系统,提高了轮式工程机械操作的稳定性,使控制过程更加自动化和智能化。重点阐述了系统的工作原理、硬件构成、各部分的主要功能以及软件的结构和实现方法。Construction machinery is important mechanical equipment in resource exploration, municipal projects, transportation construction, water conservancy and electric power construction. Traditional differentials on wheel type construction machinery couldn't provide stable operation for vehicles due to narrow range of self-locking coefficient variation and limited anti-slip performance. Moreover, the differential characteristics don't suit external condition changes so it is difficult to realize automatic control and the productivity is decreased. In view of the defect of weak anti-slip function of traditional differentials on construction machinery, a new type of differential system with automatic anti-slip is researched; it takes ATMEL89C2051 as control kernel, optimum slip ratio as control target and fuzzy PID as control method to increase operation stability of wheel type construction machinery to make the control procedure more automatic and more intelligent. Work principle, hardware composition, main functions of every part as well as software structure and realization are emphasized.

关 键 词：防滑差速系统 ATMEL89C2051 轮速识别 模糊PID控制 

分 类 号：TU602[建筑科学—建筑技术科学]